In each of Exercises 5.3 to 5.6, is a count. Does have a binomial distribution? If so, give the distribution of . If not, give your reasons as to why not.

Question 5.2

5.2 Using the Internet to make travel reservations.

A recent survey of 1351 randomly selected U.S. residents asked whether or not they had used the Internet for making travel reservations.2 There were 1041 people who answered Yes. The other 310 answered No.

  1. What is ?
  2. Choose one of the two possible outcomes to define the random variable, . Give a reason for your choice.
  3. What is the value of ?
  4. Find the sample proportion, .